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Euler characteristic of primitive T-hypersurfaces and maximal surfaces
Benoit Bertrand
Viro method plays an important role in the study of topology of real algebraic hypersurfaces. The T-primitive hypersurfaces we study here appear as the result of Viro's combinatori…
math.AG2006
A Viro Theorem without convexity hypothesis for trigonal curves
Benoit Bertrand, Erwan Brugalle
A cumbersome hypothesis for Viro patchworking of real algebraic curves is the convexity of the given subdivision. It is an open question in general to know whether the convexity is…